Source for Coker spokes?

This past weekend I noticed one of the spokes on my Coker Big One had snapped. The local REI that does bike/uni work for me can not order spokes of that length. What is the best source for replacements? Coker?

Thanks,
Tom

If you call www.cokercycles.com they will sell individual replacement spokes for the Big One but not full sets. Or try www.unicycle.com